Suction cleaner agitator



June 22, 1954 G. s. SIRVIS 2,681,465

SUCTION CLEANER AGITATOR Filed May 18, 1949 2 Sheets-Sheet l INVENTOR. Gen/"11: J." Sift/i6 ATTORNEY.

June 22, 1954 G, s v s SUCTION CLEANER AGITATOR 2 Sheets-Sheet 2 Filed May 18, 1949 INVENTOH. 66/1/1711 5. Girl 6 K ATTORNEY.

Patented June 22, 1954 SUCTION CLEANER AGITATOR Genrik S. Sirvis, Detroit, Mich., assignor to The Hoover Company, North Canton, Ohio, a corporation of Ohio Application May 18, 1949, Serial No. 93,885

11 Claims.

I The present invention relates to suction cleaners and more particularly to a device for attaching a surface agitating member on an agitator for use in suction cleaners.

An object of the invention is to provide a new and improved agitator for suction cleaners. Another object is to provide a device for removably attaching a surface agitating member on an agitator. Other objects and advantages of the invention will be apparent from the following description and drawings, wherein:

Figure 1 is a side elevation of a suction cleaner with parts broken away showing my agitator in a suction cleaner;

Figure 2 is an elevational view partly in section of one embodiment of the invention;

Figure 3 is an enlarged section along the line 3-3 of Figure 2;

Figure 4 is an enlarged end view of Figure 2 with parts broken away;

Figure 5 is an elevational view at one end of an agitator showing a modified device for attaching the surface agitating member to an agitator; and

Figure 6 is an enlarged end view of Figure 5 with parts broken away.

The embodiment of the invention disclosed in Figures 1 to a comprises a suction cleaner provided with a nozzle 5!] connected by a suction air passageway H to a fan chamber [2 having a fan I3 mounted on the shaft M of an unshown motor enclosed in a housing 15. The nozzle I is formed with front and rear surface contacting lips i and ii between which the dirt laden air is drawn by the fan 13 through the suction air passageway E! into the fan chamber I2 and is discharged through an outlet l8 into a dirt filtering bag it. Front and rear wheels and 2] support the cleaner and the latter is propelled over the surface being cleaned by a pivoted handle 22. Rotatably mounted in the nozzle 10 is an agitator driven by a belt 26 extending to the motor shaft Hi.

The agitator 25 comprises an elongated cylindrical body 21 which is provided at its center with a portion of reduced diameter to form a pulley 28 to receive the driving belt 26. The body 2'! is rotatably supported upon a shaft 29 the ends 30 of which are angular in cross section toprevent the shaft rotating when arranged in the nozzle Ill. A cup 32 is seated in each end 33 of the body 21 and supports a bearing 34 to rotatably seat the body on the shaft 29. A stationary end cap 35 is fitted on the shaft 29 and has a peripheral flange 36 which overlies the 2 end 33 of the body. Attached to the body 2'! by rivets 31 is a rigid helically extending beater bar 38.

The body 2'! is provided with a brush seat 40 extending from each side 4! of the pulley 28 to a point d2 short of the end 33 of the body 2'1. Each brush seat 40 is formed integrally with the body 2"! by inwardly inclined side walls 43-43 and bottom walls t t-M. In each brush seat 48 is positioned a brush 45 having two rows of flexible bristles l646 separated by a member (ii, and the bristles are secured within a brush back t? having side walls 49 and a bottom wall 59 seated against the side walls 43 and bottom walls M of the brush seat.

The brush 45 is attached to the seat 49 by a resilient wire clamp 52 having a bowed configuration and is provided at its opposite ends with hooks 53 and 5d. The wire clamp is arranged between the two rows of bristles 46 with a depressed intermediate portion 55 pressing against the member ll. The hook 53 is attached to the body 2! by angularly ofiset portions 57 and 58 which conform to the inner surface of the pulley 28 and abut thereagainst. The other hook 54 is U-shaped and is attached to the body 27! by engaging the flange of cup 32 seated in each end 33 of the body. The flange 3% on the end cap 35 overlies the portion 59 of the hook 54 to prevent removal of the latter from the body 2?.

The bowed shape of the resilient wire clamp 52 urges the hooks 53 and 54 radially outward and thus aids in holding the hooks in their brush locking position.

In assembling the brush 45 on the body 27, the brush back as is placed in its seat All, the hook 53 is inserted under the pulley 28 and the wire clamp 52 is arranged between the bristles 46 and then the U-shaped hook 54 is snapped over the flange of cup 32 seated in the extreme end 33 ofthe body 27. ihereafter the end cap 35 is fitted onto the shaft 29 and its flange 36 telescopes the portion 53 of the hook 5 to hold the latter in its locked position.

When it is desired to remove the brush, the end cap 35 is disconnected from the flange of cup 32 seated in the shaft 29 to expose the hook 5 and the latter is pulled over the extreme end 33 of the body and lifted upwardly away from the bristles 46 and the book 53 is then pulled from underneath the pulley 28 permitting the brush 15 to be lifted from its seat 40.

The form of the invention disclosed in Figures 5 and 6 is similar to that shown in Figures 2 to 4 except that the wire clamp 52 has been. provided with a different type of hook 65 for engaging the end of the agitator body 21. In this embodiment the hook 65 has an offset portion 66 abutting a vertical flange 61 on a cup 68, and the latter is provided with a peripheral slot 69 to receive a longitudinal offset portion iii of the hook 655. A depending angular portion H of the hook is disposed in an angular recess 12 in the face of the cup 58 and the latter is provided with a hole 13 for the end 14 of the hook. An end cap 15 and its flange it cover the cup 68 and the hook 65.

The brush 35 is assembled to the body 27 as in the previous embodiment except that the lateral offset portion 66 of the hook 65 abuts the flange 57 on the cup 88 to urge the hook 53 against its seat at the pulley 23, while the remaining portions of the hook 535 are disposed in the irregular recess 12 and hole it to prevent radial displacement of the brush.

I claim:

1. agitator for suction cleaners comprising a surface agitating means projecting from said so a seat on said body for said surface ag' ng means, hook receiving means in said body beyond the opposite ends of said surface agitating means, elongated means for securing said surface agitating means on said seat,

elongated securing means having an intermediate portion projecting toward said seat into engager out with said surface agitating means and having opposite end portions extending beyond the opposite ends of said agitating means provided with hook means disposed in said hook receiving means to hold said intermediate portion against said surface agitating means, said hook receivin means arranged with respect to agitating means said hook means to removably receive the latter by displacement of said elongated securing means longitudinally of said agitating means.

2. An agitator for suction cleaners comprising a body having a pulley spaced from an end thereof, surface agitating means on said body between said pulley and end, hook receiving means in said body adjacent said pulley and at said end, and unitary means for securing said surface agitating means on said body, said securing means having a portion engaging said surface agitating means and having hook means disposed in said-hook receiving means at said pulley and said end of the body, said hook receiving means arranged with respect to said agitating means and said hook means to removably receive the latter by displacement of said unitary securing means longitudinally of said agitating means.

3. An agitator for suction cleaners comprising a body, a brush strip on said body, hook receiving means in said body beyond the opposite ends of said brush strip, and means for securing said brush strip to said body, said securing means having a portion arranged between the bristles of said brush strip and longitudinally of the latter, said securing means having opposite end portions extending beyond said brush strip and provided with hook means disposed in said hook receiving means, and an end cap for said body preventing removal of said securing means from said hook receiving means.

4. An agitator for suction cleaners comprising a body, surface agitating means on said body, hook receiving means in said body beyond the opposite ends of said surface agitating means, and elongated means for securing said surface agitating means to said body, said elongated securing means being of resilient material and having an intermediate portion bowed toward said surface agitating means and having end portions provided with hook means, said bowed intermediate portion engaging said surface agitating means and said hook means disposed in said hook receiving means to hold said bowed portion against said surface agitating means, said hook receiving means arranged with respect to said agitating means and said hook means to removably receive the latter by displacement of said elongated securing means longitudinally of said agitating means.

5. An agitator for suction cleaners comprising a body, surface agitating means on said body, hook receiving means in said body beyond the opposite ends of said surface agitating means and including an angularly shaped recess in said body, and means for securing said surface agitating means to said body, said securing means including a portion engaging said surface agitating means and having hook means disposed in said hook receiving means, said securing means cooperating with said angularly shaped recess in said body to prevent movement of said securing means longitudinally thereof of said surface agitating means.

5. An agitator for suction cleaners comprising a body, surface agitating means projecting from said body, a seat on said body for said surface agitating means, interior hook anchoring means within said bod exterior hook anchoring means extending over the outer surface of said body, and. securing means for holding said surface agi tating means on said seat, said securing means including a portion engaging said surface agitating means and hook means seated in said interior hook anchoring means and in said exterior hook anchoring means.

'7. An agitator for suction cleaners comprising a body having a pulley spaced from an end thereof, agitating means projecting beyond the surface of said body, first hook receiving means at the interior of said surface adjacent said pulley, second hock receiving means arranged in said end and the exterior of said surface of said body, and removable securing means connected with said agitating means and having hook means at its opposite ends disposed in said first and said second hook receiving means to retain said agitator means on said body, said first and second hook receiving means arranged for removal of said securing means from said body to permit displacement of said agitating means from said body.

8. An agitator for suction cleaners comprising a body having a pulley spaced from an end thereof, agitating means projecting beyond the surface of said body, first hook receiving means at the interor of said surface adjacent said pulley, second hook receiving means arranged in said surface and said end of said body, and securing means having hook means at its opposite ends disposed in said first and said second hook receiving means and a portion connected with said agitating means to secure the latter on said body, said second hook receiving means having portions engaging its hook means to prevent movement of said securing means in opposite directions, and having means cooperating with its hook means preventing removal of said securing means from said body.

9. An agitator for suction cleaners comprising a body, a rigid elongated surface contacting beater element on said body, a surface contacting brush on said body, a seat in said body for said crush spaced from and independent of said rigid beater element, hook receiving means in said body beyond the opposite ends of said brush, elongated means having an intermediate portion engaging said brush, and hook means at the opposite ends of said elongated means disposed in said hook receiving means to hold said interme diate portion of said elongated means against said brush to position the latter in said seat, said hook receiving means arranged with respect to said brush and said hook means to removably receive the latter by displacement of said elongated means longitudinally of said brush.

10. An agitator for suction cleaners comprising a body, a seat on said body and having a mouth in the surface of said body, surface agitating means removably inserted through. said mouth into said seat, first hook receiving means in said body and having an opening exposed to said mouth, second hook receiving means formed in one end of said body, elongated means of greater length than said agitating means and having an intermediate portion engaging said agitating means, and first hook means at one end of said elongated means projecting through said opening into said first hook receiving means, second hook means at the other end of said elongated means disposed in said second hook receiving means to hold said elongated means against said brush to position the latter in said seat.

ll. An agitator for suction cleaners as in claim 10 and including an end cap removably attached to said end of said body and enclosing said second hook means to prevent removal of the latter from said second hook receiving means.

References Cited in the file of thi patent UNITED STATES PATENTS Number Name Date 1,435,358 Wheeler Nov. 14, 1922 1,829,548 Smellie et al Oct. 27, 1931 2,095,472 Hudson Oct. 12, 1937 2,153,457 Fechtenburg Apr. 4, 1939 2,281,412 Cave et al Apr. 28, 1942 2,414,853 Comiskey Jan. 28, 194-! 2,436,934 Nielsen et a1. Mar. 2, 19% 

